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Serga [27]
3 years ago
11

Select the correct answer.

Physics
2 answers:
Aleks [24]3 years ago
7 0
I would say c, if she is looking in a good neighborhood with good policing, then she wants to be safe.
Alenkasestr [34]3 years ago
3 0
The answer would be c because it is talking about she wants to be in a good neighborhood
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The magnitude of a magnetic field a distance 2.0 µm from a wire is 36.0 × 10-4 T How much current is flowing through the
diamong [38]

The answer & explanation for this question is given in the attachment below.

5 0
3 years ago
(will give brainliest to whoever is first and gives reason) A mass is spun in a circle with a frequency of 40Hz. What is the per
Blizzard [7]

Answer:

\huge\boxed{T = 0.025\ seconds}

Explanation:

<u>Given:</u>

Frequency = f = 40 Hz

<u>Required:</u>

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<u>Formula:</u>

\sf T = 1 / f

<u>Solution:</u>

T = 1 / 40

T = 0.025 seconds

\rule[225]{225}{2}

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<h3>~AH1807</h3>
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3 years ago
A speaker at the front of a room and an identical speaker at the rear of the room are being driven at 456 Hz by the same sound s
vampirchik [111]

Answer:

2.97795 Hz

Explanation:

v = Speed of sound in air = 343 m/s

v_r = Relative speed between the speakers and the student = 1.12 m/s

f' = Actual frequency of sound = 456 Hz

Frequency of sound heard as the student moves away from one speaker

f_1=f'\dfrac{v-v_r}{v}\\\Rightarrow f_1=456\dfrac{343-1.12}{343}\\\Rightarrow f_1=454.51102\ Hz

Frequency of sound heard as the student moves closer to the other speaker

f_2=f'\dfrac{v+v_r}{v}\\\Rightarrow f_2=456\dfrac{343+1.12}{343}\\\Rightarrow f_2=457.48897\ Hz

The difference in the frequencies is

f_2-f_1=457.48897-454.51102=2.97795\ Hz

The student hears 2.97795 Hz

6 0
2 years ago
What energy does black holes give off? A) photons B) dark matter C) dark energy D) none of the above
Umnica [9.8K]

never seen one although i guess the elegant answer is D) none of the mentioned posibilities

6 0
3 years ago
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You drop a pencil from your desk, which is 1 meter above the floor. How long does it take for the pencil to hit the floor? How f
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Answer:

tardo50  ilimegnudos

s

Explanation:

8 0
3 years ago
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